Mastering Periodic Trends
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Questions and Answers

Which of the following is a periodic trend?

  • Atomic number
  • Atomic size (correct)
  • Atomic weight
  • Atomic charge
  • What is the atomic radius of a metal like sodium defined as?

  • The distance between the outermost electron and the nucleus
  • The distance between adjacent nuclei in a crystal of the element (correct)
  • The distance between the protons and neutrons in the nucleus
  • The distance between the innermost electron and the nucleus
  • What happens to the atomic radii as you move from left to right across a period?

  • They fluctuate
  • They decrease (correct)
  • They remain the same
  • They increase
  • What happens to the atomic radii as you move down a group?

    <p>They increase</p> Signup and view all the answers

    Why do atomic radii generally increase as you move down a group?

    <p>The nuclear charge increases</p> Signup and view all the answers

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